Case Study
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Ansys is committed to setting today's students up for success, by providing free simulation engineering software to students.
Ansys is committed to setting today's students up for success, by providing free simulation engineering software to students.
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Case Study
An electronic engineering (E/E) module supplier had to meet an automotive OEM’s reliability metric of 97% (less than 3% risk of failure) over a 10-year durability period for a new E/E module. To determine whether the supplier’s product meets the reliability goal, the automotive OEM requested that the modules be subjected to thermal cycling tests with OEM-defined parameters.
The E/E module supplier’s product operated throughout the tests; however, post-test tear downs revealed that the module had suffered cracks in solder joints due to solder fatigue. As a result, the automotive OEM rejected the supplier’s new module.
The E/E module supplier suspected that the automotive OEM’s thermal cycling parameters were unnecessarily severe. The supplier commissioned the use of Ansys Sherlock to test the module’s field durability against the thermal cycling tests using simulation-aided testing. A 3D FEA model was built of the supplier’s E/E module in a CAE environment, using the OEM’s definition of annual thermal cycling to model the 10-year field profile.
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